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4639-78-5

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4639-78-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4639-78-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,3 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4639-78:
(6*4)+(5*6)+(4*3)+(3*9)+(2*7)+(1*8)=115
115 % 10 = 5
So 4639-78-5 is a valid CAS Registry Number.

4639-78-5Downstream Products

4639-78-5Relevant articles and documents

ASSISTANCE NUCLEOPHILE DANS DES REACTIONS DE REDUCTION D'ORGANOHALOGENO- ET HALOGENO-GERMANES PAR DES REDUCTEURS DOUX R3M(IVB)-H ET RCHO: GERMYLANIONS, DERIVES FONCTIONNELS DU GERMANIUM

Castel, A.,Riviere, P.,Satge, J.

, p. 137 - 146 (2007/10/02)

Catalytic activity of nuclophiles such as tertiary amines and diazo derivatives in the reduction of halogermanes by means of gentle reductive agents, such as R3M(IVB)-H or RCHO, has been shown.In the particular case of enolisable aldehyde, a competition between nucleophilic substitution at the metal and germanium-halogen bond reduction has been observed.Transposition of enoxygermanes formed through the substitution process, leads to β-germylaldehydes.

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